DESIGNED FOR CLASSROOM EDUCATION: Each kit includes 12 individually wrapped projects with its own set of instructions and a tool. This set of 4 is the perfect size to use on your own or as a classroom activity! DIG IT UP AND PLAY: Simply soak the 3 clay egg or stone in water then carefully chisel away the sedimentary material to reveal the surprise inside. Rinse off the remaining clay and your child will be ready to play. Manufacturered by MindWare. EXCAVATION GUIDE: An excavation guidebook is included to learn more about your discoveries. Learn how to classify each item discovered by similar traits or characteristics and create your very own diorama. INCLUDES: (1 each) Dig It Up! Dinosaurs Dig It Up! Dino Skeletons Dig It Up! Minerals and Dig It Up! Bugs (For ages 4 an up) TOYS THAT TEACH: Experience the thrill of discovery as you excavate with these great combination kits from MindWare. Use the Excavation Guide to identify each of your finds!